Miscarriage of justice
Unfair outcomes in criminal or civil proceedings.
Wikipedia / Wikimedia Commons
A miscarriage of justice happens when a legal proceeding—whether criminal or civil—produces an unfair result. This can take several forms: an innocent person is convicted, a guilty party escapes punishment, sentences are applied inconsistently, or justice is unreasonably delayed. Innocent individuals have sometimes spent years behind bars before their convictions are thrown out, often because new evidence surfaces or it is shown that police or prosecutors acted improperly. In some places, this can lead to compensation.
Researchers have identified six main causes of such miscarriages: mistaken identification by eyewitnesses; flawed forensic analysis; false confessions given by vulnerable suspects; lies or perjury from witnesses; misconduct by police, prosecutors, or judges; and poor legal representation for the defendant.
To estimate how often wrongful convictions occur, two approaches are used. One looks at exonerations—cases where a conviction is officially overturned after new evidence proves innocence. Since 1989, the Innocence Project has used DNA evidence to overturn 375 convictions in the United States, but DNA is available in only 5 to 10% of criminal cases, and these exonerations are limited to murder and rape. This suggests many wrongful convictions may never be discovered. Studies cited by the Innocence Project estimate that between 2.3% and 5% of U.S. prisoners are innocent. A 2017 study of Virginia death penalty cases from the 1970s and 1980s, matched with later DNA analysis, put the rate at 11.6%. A 2014 study in the Proceedings of the National Academy of Sciences conservatively estimated that 4.1% of inmates on death row are innocent.
The second method relies on self-reporting: researchers ask prisoners if they have ever confessed to a crime they did not commit. This approach covers all crimes, not just those with DNA evidence. Two Icelandic studies, conducted ten years apart, found false confession rates of 12.2% and 24.4%. Since false confessions often lead to wrongful convictions, these figures serve as a proxy for miscarriages of justice. A 2021 Scottish study of inmates in one prison reported a self-confessed false confession rate of 33.4%. Overall, up to 10,000 people may be wrongfully convicted of serious crimes each year in the United States. According to Professor Boaz Sangero, most wrongful convictions in Israel involve less seriou
- Innocence Project exonerations since 198
- 375 overturned convictions using DNA evidence
Lore & Background
Academic studies have identified six main factors contributing to miscarriages of justice: eyewitness misidentification, faulty forensic analysis, false confessions by vulnerable suspects, perjury and lies by witnesses, misconduct by police, prosecutors or judges, and ineffective assistance of counsel. Eyewitness misidentification alone contributes to 70% of wrongful convictions, as memory can be altered by the way police lineups are conducted. The Innocence Project reports that faulty forensic analysis accounts for 44% of wrongful convictions, often due to misrepresentation of scientific evidence in areas such as serology, hair comparison, and bite marks.
Reader's Guide
The concept of miscarriage of justice is significant because it highlights systemic failures in legal systems that can lead to the punishment of innocent individuals. Estimates of wrongful conviction rates vary widely, from 2.3% to 11.6% in different U.S. studies, and self-report studies in Iceland and Scotland show false confession rates between 12.2% and 33.4%. These figures suggest that many miscarriages may go undetected, especially in cases without DNA evidence. The legacy of research on this topic has prompted reforms in interrogation techniques, forensic analysis protocols, and eyewitness identification procedures, though the article notes that coercive methods like the Reid Technique remain in use despite producing more false confessions.
Did You Know?
- Eyewitness misidentification contributes to 70% of wrongful convictions.
- The Innocence Project has helped overturn 375 convictions using DNA evidence since 1989.
- A 2014 study estimated that 4.1% of inmates on death row in the United States are innocent.
- False confessions contribute to approximately 25% of wrongful convictions in murder and rape cases.
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